CVE-2023-3704 | Timestamp Modification Vulnerability in CP-Plus Digital Video Recorder

The vulnerability exists in CP-Plus DVR due to an improper input validation within the web-based management interface of the affected products. An unauthenticated remote attacker could exploit this vulnerability by sending specially crafted HTTP requests to the vulnerable device. Successful exploitation of this vulnerability could allow the remote attacker to change system time of the targeted device.

Published: 2023-08-24 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2023-3704 is rated Low Risk (35.7/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.53%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2023-3704

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.06% 0.53% +0.47%
2 2023-09-02 0.05% 0.06% +0.01%
3 2023-08-24 — 0.05% —

Full EPSS history (3 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2023-3704

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.3 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:N)
Service keeps running; no real outage angle.
 3.9 1.4 [email protected]
5.3 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:N)
Service keeps running; no real outage angle.
 3.9 1.4 [email protected]

Weakness enumeration for CVE-2023-3704

Affected software / configurations for CVE-2023-3704

Vendor Product Version Raw CPE
cpplusworld cp-uvr-1601e1-hc_firmware < 4.000.00at008.0.0.r20230302 cpe:2.3:o:cpplusworld:cp-uvr-1601e1-hc_firmware:*:*:*:*:*:*:*:*
cpplusworld cp-uvr-0401l1-4kh_firmware < 4.000.00at008.0.0.r20230302 cpe:2.3:o:cpplusworld:cp-uvr-0401l1-4kh_firmware:*:*:*:*:*:*:*:*
cpplusworld cp-uvr-0401l1b-4kh_firmware < 4.000.00at008.0.0.r20230302 cpe:2.3:o:cpplusworld:cp-uvr-0401l1b-4kh_firmware:*:*:*:*:*:*:*:*
cpplusworld cp-uvr-0801f1-hc_firmware < 4.000.00at008.0.0.r20230302 cpe:2.3:o:cpplusworld:cp-uvr-0801f1-hc_firmware:*:*:*:*:*:*:*:*
cpplusworld cp-uvr-0801k1-h_firmware < 4.000.00at008.0.0.r20230302 cpe:2.3:o:cpplusworld:cp-uvr-0801k1-h_firmware:*:*:*:*:*:*:*:*
cpplusworld cp-uvr-0801k1b-h_firmware < 4.000.00at008.0.0.r20230302 cpe:2.3:o:cpplusworld:cp-uvr-0801k1b-h_firmware:*:*:*:*:*:*:*:*
cpplusworld cp-uvr-0808k1-h_firmware < 4.000.00at008.0.0.r20230302 cpe:2.3:o:cpplusworld:cp-uvr-0808k1-h_firmware:*:*:*:*:*:*:*:*
cpplusworld cp-uvr-1601e1-h_firmware < 4.000.00at008.0.0.r20230302 cpe:2.3:o:cpplusworld:cp-uvr-1601e1-h_firmware:*:*:*:*:*:*:*:*
cpplusworld cp-uvr-1601e2-h_firmware < 4.000.00at008.0.0.r20230302 cpe:2.3:o:cpplusworld:cp-uvr-1601e2-h_firmware:*:*:*:*:*:*:*:*

References for CVE-2023-3704

cvelogic Threat Intelligence